Isosceles Triangles

Practice Questions

PSAT Math › Isosceles Triangles

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1

The base angle of an isosceles triangle is 15 less than three times the vertex angle. What is the vertex angle?

2

The base angle of an isosceles triangle is 15 less than three times the vertex angle. What is the vertex angle?

3

What is the area of a square that has a diagonal whose endpoints in the coordinate plane are located at (-8, 6) and (2, -4)?

4

What is the area of a square that has a diagonal whose endpoints in the coordinate plane are located at (-8, 6) and (2, -4)?

5

What is the area of a square that has a diagonal whose endpoints in the coordinate plane are located at (-8, 6) and (2, -4)?

6

The base angle of an isosceles triangle is 15 less than three times the vertex angle. What is the vertex angle?

7

An isosceles triangle has a base of 6 and a height of 4. What is the perimeter of the triangle?

8

An isosceles triangle has a base of 6 and a height of 4. What is the perimeter of the triangle?

9

An isosceles triangle has a base of 6 and a height of 4. What is the perimeter of the triangle?

10

The base angle of an isosceles triangle is five more than twice the vertex angle. What is the base angle?

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